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- PDB-1tf4: ENDO/EXOCELLULASE FROM THERMOMONOSPORA -

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Basic information

Entry
Database: PDB / ID: 1tf4
TitleENDO/EXOCELLULASE FROM THERMOMONOSPORA
ComponentsT. FUSCA ENDO/EXO-CELLULASE E4 CATALYTIC DOMAIN AND CELLULOSE-BINDING DOMAIN
KeywordsGLYCOSYL HYDROLASE / CELLULOSE DEGRADATION
Function / homology
Function and homology information


cellulose binding / cellulase / cellulase activity / cellulose catabolic process
Similarity search - Function
Glycosyl hydrolases family 9 (GH9) active site signature 1. / Endoglucanase-like / Glycoside hydrolase family 9, His active site / Carbohydrate-binding type-2, conserved site / CBM2a (carbohydrate-binding type-2) domain signature. / Glycosyl hydrolases family 9 (GH9) active site signature 2. / Glycosyl hydrolases family 9, Asp/Glu active sites / Glycosyl hydrolases family 9 (GH9) active site signature 3. / Cellulose binding domain / Cellulose binding domain ...Glycosyl hydrolases family 9 (GH9) active site signature 1. / Endoglucanase-like / Glycoside hydrolase family 9, His active site / Carbohydrate-binding type-2, conserved site / CBM2a (carbohydrate-binding type-2) domain signature. / Glycosyl hydrolases family 9 (GH9) active site signature 2. / Glycosyl hydrolases family 9, Asp/Glu active sites / Glycosyl hydrolases family 9 (GH9) active site signature 3. / Cellulose binding domain / Cellulose binding domain / Carbohydrate-binding module 3 / Carbohydrate-binding module 3 superfamily / CBM3 (carbohydrate binding type-3) domain profile. / Glycoside hydrolase family 9 / Glycosyl hydrolase family 9 / Cellulose binding domain / Carbohydrate-binding type-2 domain / CBM2 (Carbohydrate-binding type-2) domain profile. / CBD_II / CBM2, carbohydrate-binding domain superfamily / Glycosyltransferase - #10 / CBM2/CBM3, carbohydrate-binding domain superfamily / Six-hairpin glycosidase-like superfamily / Six-hairpin glycosidase superfamily / Glycosyltransferase / Alpha/alpha barrel / Fibronectin type III domain / Fibronectin type 3 domain / Fibronectin type-III domain profile. / Fibronectin type III / Fibronectin type III superfamily / Immunoglobulin-like fold / Immunoglobulin-like / Sandwich / Mainly Beta / Mainly Alpha
Similarity search - Domain/homology
Biological speciesThermobifida fusca (bacteria)
MethodX-RAY DIFFRACTION / MIR / Resolution: 1.9 Å
AuthorsSakon, J. / Wilson, D.B. / Karplus, P.A.
CitationJournal: Nat.Struct.Biol. / Year: 1997
Title: Structure and mechanism of endo/exocellulase E4 from Thermomonospora fusca.
Authors: Sakon, J. / Irwin, D. / Wilson, D.B. / Karplus, P.A.
History
DepositionMay 30, 1997Processing site: BNL
Revision 1.0Sep 4, 1997Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: T. FUSCA ENDO/EXO-CELLULASE E4 CATALYTIC DOMAIN AND CELLULOSE-BINDING DOMAIN
B: T. FUSCA ENDO/EXO-CELLULASE E4 CATALYTIC DOMAIN AND CELLULOSE-BINDING DOMAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)134,5946
Polymers134,4342
Non-polymers1604
Water28,0311556
1
A: T. FUSCA ENDO/EXO-CELLULASE E4 CATALYTIC DOMAIN AND CELLULOSE-BINDING DOMAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)67,2973
Polymers67,2171
Non-polymers802
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: T. FUSCA ENDO/EXO-CELLULASE E4 CATALYTIC DOMAIN AND CELLULOSE-BINDING DOMAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)67,2973
Polymers67,2171
Non-polymers802
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)145.680, 145.680, 157.080
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212
Components on special symmetry positions
IDModelComponents
11A-1006-

HOH

21A-1387-

HOH

Noncrystallographic symmetry (NCS)NCS oper: (Code: given
Matrix: (0.272878, 0.698058, 0.662007), (0.719232, -0.605037, 0.34152), (0.638939, 0.382943, -0.667166)
Vector: -119.84378, 112.45155, 110.71117)

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Components

#1: Protein T. FUSCA ENDO/EXO-CELLULASE E4 CATALYTIC DOMAIN AND CELLULOSE-BINDING DOMAIN / ENDO-1 / 4-BETA-D-GLUCANASE


Mass: 67216.750 Da / Num. of mol.: 2 / Fragment: CATALYTIC DOMAIN AND CELLULOSE-BINDING DOMAIN
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Thermobifida fusca (bacteria) / Gene: BAMH1-PST1 FRAGMENT OF T. FUSC / Plasmid: PIJ702 / Species (production host): Streptomyces lividans
Gene (production host): BAMH1-PST1 FRAGMENT OF T. FUSCA GENOMIC DNA CARRYING NATIVE E4 GENE
Production host: Streptomyces lividans TK24 (bacteria) / Strain (production host): TK24 / References: UniProt: P26221, cellulase
#2: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Ca
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 1556 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.1 Å3/Da / Density % sol: 52 %
Crystal growTemperature: 277 K / pH: 5.8
Details: 90MG/ML E4-68 26% PEG8000 0.7M LICL 0.1M NA CITRATE, PH5.8 4 DEGREE, temperature 277K
Crystal grow
*PLUS
Temperature: 4 ℃ / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
190 mg/mlE4-681drop
226 %PEG80001reservoir
30.7 M1reservoirLiCl
40.1 MNa-citrate1reservoir

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Data collection

DiffractionMean temperature: 287 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH2R / Wavelength: 1.5418
DetectorType: XUONG-HAMLIN MULTIWIRE / Detector: AREA DETECTOR / Date: Jun 1, 1996
RadiationMonochromator: GRAPHITE(002) / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.9→8 Å / Num. obs: 118700 / % possible obs: 94 % / Observed criterion σ(I): 0 / Redundancy: 3.2 % / Rmerge(I) obs: 0.092 / Rsym value: 0.096 / Net I/σ(I): 11
Reflection shellResolution: 1.86→1.9 Å / Redundancy: 1.7 % / Rmerge(I) obs: 0.31 / Mean I/σ(I) obs: 2.2 / Rsym value: 0.44 / % possible all: 73
Reflection shell
*PLUS
% possible obs: 73 %

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Processing

Software
NameVersionClassification
SCALEPACKdata scaling
PHASESphasing
X-PLOR3.8model building
X-PLOR3.8refinement
X-PLOR3.8phasing
RefinementMethod to determine structure: MIR / Resolution: 1.9→8 Å / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
Rfactor% reflectionSelection details
Rfree0.25 5 %RANDOM
Rwork0.2 --
obs0.2 94 %-
Displacement parametersBiso mean: 23 Å2
Refinement stepCycle: LAST / Resolution: 1.9→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms9514 0 0 1563 11077
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.007
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.6
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Refine LS restraints NCSNCS model details: RESTRAINED
LS refinement shellResolution: 1.86→1.94 Å / Total num. of bins used: 10 /
Rfactor% reflection
Rfree0.43 5 %
Rwork0.36 -
Software
*PLUS
Name: X-PLOR / Version: 3.8 / Classification: refinement
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_improper_angle_deg / Dev ideal: 1.5
LS refinement shell
*PLUS
Rfactor obs: 0.36

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